From patchwork Mon Nov 27 04:37:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Li X-Patchwork-Id: 13469049 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 64A78C07D59 for ; Mon, 27 Nov 2023 04:37:56 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r7TN5-0000bM-4m; Sun, 26 Nov 2023 23:37:23 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r7TN0-0000aY-FJ; Sun, 26 Nov 2023 23:37:18 -0500 Received: from mail-oi1-x229.google.com ([2607:f8b0:4864:20::229]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1r7TMz-0001GU-0q; Sun, 26 Nov 2023 23:37:18 -0500 Received: by mail-oi1-x229.google.com with SMTP id 5614622812f47-3b58d96a3bbso2317347b6e.1; Sun, 26 Nov 2023 20:37:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701059834; x=1701664634; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=VOgRNpZvdVvAGbxkTra1OPfsf10qYyzqF/NLqWPBLM4=; b=BxIAcsAscwFHBlcT00I6aVl0CemKvLcf7TdoDceymCYRcv4mUI++WYUJGgFBfOMN0q 4P5O1HoZs7A4w7u25bY8mBLLFA9P7swJABRh41Au6hNFtVYiuapRjS2ic7lYg3+FInL3 cOTiXZNFSrrT51Kc816B2ABw5hoHQlWK4C8/XDPvi4CffwjO2ArPS4RuiLcbG32wwqfT fJc51gq47pOy9JCilTL+F8rObonjZU4Ri2ZIcFWh4ht4zckdlw8RaQZXty/IPs9oYD3z zbW83ircbHLVOQUlupAhdlZWS2CXTGa32Ufc4akNrKrIUSAGtLTjff6llWfcxijtnqu/ 2Q8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701059834; x=1701664634; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VOgRNpZvdVvAGbxkTra1OPfsf10qYyzqF/NLqWPBLM4=; b=GO2hwkD4Cdw3Xm9GFQHf4vDtnIBwSHzgy5c5hblzDg7X0mI6ofFo6KXBP3Y4hsysQ/ 6THAY9ekLSVHE6DNa5s9m2p2G3PEuAi0ySCxMJtsY6PoHxalvSdMKoLEsvMsqFszQa6M KPeh4RNBvQv9qfPcJFDwXOEvLOy8pkI/FurpllZtU+CDVztaGPMWtvSeFgjTH7GYzCig ROH9AOMe8Ux3aQQYx3qDbCBvS1/ZAX5soZaao/ffljVHqyTEkF2eRUumL85AOzycx0rO UVgEPdZ44vaB399a45F4aVJdPcqjPYmWlGBGL4Sif3Ovo5lnZk/FYW3dxnzL5iZni7lj cnzg== X-Gm-Message-State: AOJu0Yz6Op/jBLB8tGCjRqFA3RDk5VCusYZTMMbNIZYQb0IgM1UtJWNK vNSaBIhXbT3WWtL1CazLXf8SUpASCk+v6z52 X-Google-Smtp-Source: AGHT+IEW/qYf3rdBaZAauHJ2jDhFts8YlnNFcBKCO32b6n/JUE0LyXb1Ik9dhgUL0YmUIQA3PWr11w== X-Received: by 2002:a05:6808:13d5:b0:3b2:e577:7344 with SMTP id d21-20020a05680813d500b003b2e5777344mr14869031oiw.38.1701059834019; Sun, 26 Nov 2023 20:37:14 -0800 (PST) Received: from fedlinux.. ([106.84.128.244]) by smtp.gmail.com with ESMTPSA id u15-20020a62ed0f000000b006c4d86a259csm6280070pfh.28.2023.11.26.20.37.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Nov 2023 20:37:13 -0800 (PST) From: Sam Li To: qemu-devel@nongnu.org Cc: dmitry.fomichev@wdc.com, qemu-block@nongnu.org, Kevin Wolf , dlemoal@kernel.org, hare@suse.de, Hanna Reitz , stefanha@redhat.com, Eric Blake , Markus Armbruster , Sam Li Subject: [PATCH v6 1/4] docs/qcow2: add the zoned format feature Date: Mon, 27 Nov 2023 12:37:00 +0800 Message-Id: <20231127043703.49489-2-faithilikerun@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231127043703.49489-1-faithilikerun@gmail.com> References: <20231127043703.49489-1-faithilikerun@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::229; envelope-from=faithilikerun@gmail.com; helo=mail-oi1-x229.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add the specs for the zoned format feature of the qcow2 driver. The qcow2 file then can emulate real zoned devices, either passed through by virtio-blk device or NVMe ZNS drive to the guest given zoned information. Signed-off-by: Sam Li Reviewed-by: Stefan Hajnoczi --- docs/system/qemu-block-drivers.rst.inc | 35 ++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/docs/system/qemu-block-drivers.rst.inc b/docs/system/qemu-block-drivers.rst.inc index 105cb9679c..955fea271e 100644 --- a/docs/system/qemu-block-drivers.rst.inc +++ b/docs/system/qemu-block-drivers.rst.inc @@ -172,6 +172,41 @@ This section describes each format and the options that are supported for it. filename`` to check if the NOCOW flag is set or not (Capital 'C' is NOCOW flag). + .. option:: zone.mode + If this is set to ``host-managed``, the image is an emulated zoned + block device. This option is only valid to emulated zoned device files. + + .. option:: zone.size + + The size of a zone in bytes. The device is divided into zones of this + size with the exception of the last zone, which may be smaller. + + .. option:: zone.capacity + + The initial capacity value, in bytes, for all zones. The capacity must + be less than or equal to zone size. If the last zone is smaller, then + its capacity is capped. + + The zone capacity is per zone and may be different between zones in real + devices. QCow2 sets all zones to the same capacity. + + .. option:: zone.conventional_zones + + The number of conventional zones of the zoned device. + + .. option:: zone.max_open_zones + + The maximal allowed open zones. + + .. option:: zone.max_active_zones + + The limit of the zones with implicit open, explicit open or closed state. + + .. option:: zone.max_append_bytes + + The number of bytes in a zone append request that can be issued to the + device. It must be 512-byte aligned. + .. program:: image-formats .. option:: qed